220021323019 has 2 divisors, whose sum is σ = 220021323020. Its totient is φ = 220021323018.

The previous prime is 220021322999. The next prime is 220021323043. The reversal of 220021323019 is 910323120022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220021323019 - 2⁵ = 220021322987 is a prime.

It is a super-2 number, since 2×220021323019² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220021322984 and 220021323002.

It is not a weakly prime, because it can be changed into another prime (220021323419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110010661509 + 110010661510.

It is an arithmetic number, because the mean of its divisors is an integer number (110010661510).

Almost surely, 2^220021323019 is an apocalyptic number.

220021323019 is a deficient number, since it is larger than the sum of its proper divisors (1).

220021323019 is an equidigital number, since it uses as much as digits as its factorization.

220021323019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The spelling of 220021323019 in words is "two hundred twenty billion, twenty-one million, three hundred twenty-three thousand, nineteen".